Safety-lock for coupling-heads.



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anemia-me weeleee'sin efe vee'semseim @Menifee July ei., wie.

gemeenmeaieigeieie. smeiii'm'vm'ee.. v

T all whom in' mayiafeffze'em 4 Be it' known the L LEoNHes' D.' Weed kmq, a citizen of the United Simms, sesidlig ence being had tothe accompanying drew* ingse and to the letters and figures ef refer- 'ence marked; the: se0i1, which ferm peet of this speeiemllen.v

This invention elees toeeitein new and l useful lim19ievem'ents in eujemevtie' safety locks :for use iii connection Wish iuid presj sure couplings and cemprises a, simple end eicienf: device ef this meeu'e edeped te sel-Ve es a latch to leale eutomaileelly over die horn er projection of the heed o e coupler.

heed when two heads. ere coupled iogether, the abject being t0 pieduee' e seife-yiiemls 'wliereby,- ie )the event the eeiled spiirlgs which bear against .the @emplee heads besoin-- ing bifolzei, the couplers 'will still beheld te geliei", thus avoiding any leakage to lle jvoii'ted'ueonnecten. l The invention cmnaprieesv various details me construction and eonlbii'ietiens0eedv ei.- rengements ef parts' which will be beieinefxei full described, shown 'in the eccompenying :ce-Wings and hen specifleeily defined in the appended claims.

l'.' illustrate my invention in *fi/lie eccome pzmyng drawings, iii which-- 'Figurel is a, sidel elevation showing the applleeton of my invention e locked relsf tion ljeletive to one of Jslee coupler heads. Fig. 2 is e similar View showing the couplers engaged and just' before' 'the latch drops. Fig. 3 is en enlarged detail 'View showing the pivot'al eomieetion e-tthe letali with tn'e red which ie mouned upon the fumi ml-lle, and y Fig. L is en Aenlarged View of the letali de saehed from the eoupleiheed. and tum trible. Reference low bemglmd o die details .of the drawings by.' letterj A designates' e bei, one end of which is supported by en eye bell; B which is fastened ovehe eure *fable @oiled springadesignaledby 'letters E) and E., elfe mouned upon .seid sod, the i" weer of which epiinug's beei's intermediate Weehers Gr sind eine ferme? of Whichis held. the eping D egeizlsl; "elleeye bell, B, ell/ether held by e ,key fl) Washes' being' held by e pire 'which passes ilxougli one of e? se'iie's of cipenings lrl'.' farmed. iin. the red, ffl. 'lee eping E beers between e washer eeme eed of the ,red 7 e, @meer i@ which elle@ beeeegein e eye belt. Seid. bei; hes' ed jzieeif, te 1t were eiidgjiengimdieelly dispesed sleble; eed: L deegeetes 'ieelx having e' eegiie [ei: @mie-seien L which? when in e. locked pesitoeg is adapted te gege over letei'ellji pwjeciig; pim ll' ilpeu the complex they-by sewing es means for holding the two coupler heed@ in leeled relation with eeell other in theevem, of me `o? `Clie eeiled swings H2 breeisim'g. A belt? designeed my letter l), is eei'iied by the .leteh end pesseslllreugh seid slet end affords means for eliowing the letali te have e slid,

ing movement independent (liebe sod by ree son .ol hen belt Jessmg lireuggh elle elemgated slet in lie letter. 'Sem leech is plvot- .elly mounreel upon. e. belt which rie'eeIilffied-l by the emplee heed eind.5 tlsough 'ehe medium lle sliding pivee eemiectien between elle .fred and elle belty it Wille-e noted the@ ele lh-enel is given e lengudinel movememla leieli be raised. oi' lowered.

'd 1re-d has projection upon one `eide 'eef adjeeen'ii iis slezed end., which.

' pieje'eon lies zi sheulder adapted te enel slet T formed in "elle'latch when the letter et 'iis farthest meer 'thiom thus serviiig es ziieensler helding; lie latch in. u locked. peszioe. i

'eine e'ensiuetioe el 'my eu'lsemetic y leek; it will be noted lme: inw@ eprin are employed7 although may .serve l" e .x.uij iose if desiredY hm 'being uilized for convenience. The spring l, lit will lie neced.,

longer than ille spying Eg the former eci,-

Aing' 'to allow theA eil heedeand mmleeted parte to push beek weder the cereus fer ee they may move and which will allow seid D to give and pirotect the leek, -heize ey having e preesue against the md et the iront. end, keeping 'elle 'latch locked md reseing; against elle prejeeione 'the *mlm teli-le at the remend. The sherfeir spying E, ift will ee noe, will allow ille mr heads to .e forward es fair es deeixelele .Wilwut c f ge Le the leek and se've ee held the loel raised et'tee proper time.,

.he memem; bhe eeep'liisg heeds meet, he letcli L in the msed 0r inoperativepe'sit'ien :is shown im. 2. ,.fls eineA coupling; heads luie-,seal im edvenee of the cur couplersi1 they ure forced buck against the tension of the springs H2 as the car couplers move into engagement. As the hui? A. le held` relatively stationary by the opposing; springs D und E, this rearward movement of the heed puts e prese-ure upon the holt l?. lwhich tilts the latch-downwardly :about the holt P causing it to engage with the pin E.' ot an opposing coupler, When in this position, the' latch moves hflcltwardly with the heed until the holt l? contacts with the inner end of the .slot K in the har A, during which operation the walls of the slot T- cnfgugethe sides of the 'projection S. Any further movement ot' the head curriesi-the intc'i L und the holt A rearwardly agliiinst the pressure of the spring D. As the cars seperate in uncoupling, the revefse takes pince, the hor A. moving forward to its norm. iposztion und then remaining stationary; the latch L then tilting upward into its inoperative position as a pullisliierted upontihe holt R the couplinghead is orcetlftorward hy the spring H2.

ill/'hut 'l claim to he new is :7- y

1. An automatic safety lock tor'iiuid pressure couplingr comprising, inA combination with e, coupler head, a latch pivotally mounted thereon. und-having u lateral projection tor engagement over a portion of an adjacent coupled. head, a longitudinally movuole rod having sliding pivotal connection.

with said latch adjacent to one enti, means for supporting its opposite end, und means upon, said rod for holding the latch in u locked position.

.fan automatic safety loclt for fluid pressuzcecoupling comprising, in combination with e. coupler heed, a latch pivotally mounted thereon and having e lateral pro- 'ection for engagement over n portion of an adjacent coupled heed, u longitudinally movnhle rod having; sliding pivotal connection with Seid latch adjacent to one end.y means for supporting its opposite end, said latch having e notch in its edge adapted to he engaged hy u projection upon said rod to hold the latch in n locked position.

meneer 3. An automatic safety lucir or uid pressure coupling comprising, in combination with a coupler head, a latch pivotelly mounted thereon and having a lateral projection for engagement'over a portion of an adjacent coupled head', e spring-pressed rod having u longitudinal slot formed near one end thereof. a holt secured to the latch and. having sliding; pivotal connection with the sliding portion of the rofl, and means carried hy the latch for engaging seid slot for i'iolding the latch in e locked position.

4. An automatic safety lock for fluid pressure coupling comprising, in combination `with u coupler head, a ,notched late; pivotaliy mounted thereon and having a lateral projection for engagement over a portion of :in adjacent coupled head,v a, spring-pressed rod having u longitudinal slot formed near ne end thereot.l a. .holt secured to te latch und having sliding pivotal connection with the sliding portion of the rod, said rc l havingr of lateralr projection with e shouldered end ladapted to engage said notch of the hitch to hold the lutter in a locked position.

:in automatic safety lock for fluid pressure coupling comprisino, in combination with e coupler head, n latch pivotally mounted thereon und hut/ing a lateral projection for engagement-over @portion of an ndjacent coupled heed, a rod having u longi- .tudinul slot formed near one end thereofKr a holt projecting from the lutcli and engaging said slot. latch having u recess in its edge adapted to receive u projectionupon seid rod to hold the latch in e locked positiom an eye holt and ineens for' supporting the sume, said eye holt adopted to reive said rod7 keys fastened in the rod, and springs hearing interi'nediate the eye holt und said keys.-

ln testimony whereof l hereunto atiix my signature in presence of two witnesses.

A. L. Honon, FRANKLIN .EL Homin. 

